How does alcohol or smoking affect sleep apnea?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Alcohol and smoking can worsen sleep apnea by relaxing throat muscles, increasing snoring, and disrupting normal breathing patterns during sleep. Both habits inflame the airway and reduce oxygen intake, making apnea episodes more frequent and severe.

If you suspect sleep apnea may be affecting you, don't wait to find answers. Understanding your symptoms is the first step toward better sleep and better health. Take a free, instant, online symptom check to gain personalized insight into what may be causing your sleep issues and learn what steps to take next.

Reviewed for medical accuracy: 07/20/2026

Important Next Steps

Discover if alcohol worsens sleep apnea Learn what causes your sleep apnea symptoms See if snoring means sleep apnea Find OTC options for sleep-related breathing issues Find a sleep specialist for apnea care Discover safe home remedies for sleep apnea Understand if daytime sleepiness needs care today

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Explanation

Alcohol and smoking can have a negative impact on sleep apnea, a condition where breathing stops and starts during sleep. Alcohol relaxes the muscles in the throat, which can make snoring and sleep apnea worse. This can lead to more breathing problems during the night. Smoking can also make sleep apnea worse because it irritates the airways, causing swelling and blockage.

Effects of Alcohol:

Muscle Relaxation: Alcohol relaxes throat muscles, leading to more snoring and breathing interruptions.

Effects of Smoking:

Airway Irritation: Smoking causes swelling in the airways, making it harder to breathe during sleep.

Avoiding alcohol and not smoking can help reduce the severity of sleep apnea and improve sleep quality. If you're experiencing symptoms like frequent snoring, daytime fatigue, or interrupted breathing during sleep, take our free AI symptom checker to better understand what might be causing your symptoms.

(References)

Burgos-Sanchez C, Jones NN, Avillion M, Gibson SJ, Patel JA, Neighbors J, et al. (2020). Impact of Alcohol Consumption on Snoring and Sleep Apnea. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 32513091.
Gunes FE, Agan K, Aktac S, Karadeniz D, Sunter G, Vural E, & Benbir-Senel G. (2024). Assessment of Impact of Dietary Patterns on Obstructive .... Sleep science (Sao Paulo, Brazil), 38545237.
Bjorvatn B, Rajakulendren N, Lehmann S, & Pallesen S. (2018). Increased severity of obstructive sleep apnea is associated .... Journal of sleep research, 29193447.

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